Delivery mechanism for printing-presses.



PATENTED JAN. 16, 1906.

C. B. SWINK. DELIVERY MECHANISM FOR PRINTING PRBSSES.

' APPLICATION FILED JAN. 14, 1905.

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CHARLES B. Sl/VINK, OF MUSKOGEE, INDIAN TERRITORY.

DELIVERY MECHANISM FOR PRlNTlNG-PRESSES.

Specification of Iietters Patent.

Patented Jan. 16, 1906.

Application filed January 14, 1905. Serial No. 241.028.

T0 aZZ whom it may concern.-

Be it known that 1, CHARLES B. SWINK, a citizen of the United States, and a resident of Muscogee, Creek Nation, Indian Territory, have invented certain new and useful Improvements in Delivery Mechanism for Printing-Presses, of which the following is a specification, reference being had to the accompanying drawings, forming part hereof.

My invention relates to improvements in delivery mechanism for printing-presses, and is especially adapted for use in connection with the socalled Swink press, which is so named because it embodies certain inventions and improvements heretofore made by me but it is obvious that the mechanism herein set forth can be used in connection with other kinds and styles of printing-presses, such use being contemplated by me.

The invention has for its object to provide a simple and effective mechanism with as few parts as are consistent with efficiency and accuracy of operation, which are so arranged as to avoid entirely the use of sliding parts or the use of tapes; and it consists in the new and novel features of construction and combination of parts hereinafter set forth and claimed.

In the accompanying drawings, Figure 1 is a view in perspective of my improved delivery mechanism, together with such portions of a printing-press as are necessary to an understanding of the same. Figs. 2 and 3 illustrate a rear and side view, respectively, of the delivery-arms.

The press may be of any well-known construction, but preferably is of the style known as the Swink press and is provided with a cylinder and all other necessary working parts. To illustrate the present invention, however, it is not necessary to show a complete press, but only the cylinder and the delivery mechanism.

The cylinder at is mounted in standards I), and adjacent thereto is' the receiving-box 0, provided with suitable joggers d for straightening the edges of the sheets delivered from the press. The delivery mechanism is supported by suitable standards or supports a, which are secured rigidly to the frame f of the press. Suspended from the standards and mounted in suitable bearings is a shaft g. This shaft is provided with one or more delivery-arms, of which two are shown in the drawings; but it is obvious that a greater number may be used, if desired. The delivery-arms depend from the shaft back of the cylinder, their length and the chord of the are through which they swing being deter mined by the height of the bearings above and backward from the cylinder, since it is necessary that they receive the printed sheet as it is delivered from the cylinder and carry it to the delivery-box, where it is released and deposited. Each arm comprises a fixed mem her it and a movable member y'. The fixed member is rigidly secured to the shaft and moves therewith, but has no independent movement. The movable member is pivoted to this fixed member and is carried forward and backward by the movement of the shaft, but is also permitted a slight move ment independent thereof. At or near the bottom of the fixed member are two nippers, one of which, is, is fixed and the other, Z, is movable. The movable nipper is provided with gear-teeth m, which are engaged by corresponding teeth n, provided on the lower end of the movable member to open and close the nippers. A spring 0 engages both members of the delivery-arm and normally holds the nippers in their closed position.

Suitably secured to the supports in which the shaft has its bearing is a rod or stop p, so arranged that when the delivery-arms have approximately completed their backward throw the upper end of the movable member will be brought into contact therewith and rotated slightly on its pivot. This movement will actuate the movable nipper through the gears, causing it to open and the sheet to be released. A corresponding rod or stop q (identical with the feedgage rod) engages the opposite side of the movable nipper below its pivotal point at approximately the moment the delivery-arm has completed its forward throw preparatory to receiving the printed sheet from the cylinder. This rod or stop may be supported from the frame of the machine in any suitable manner, and instead of engaging directly the movable member is preferably provided with adjustable lugs 1", which contact with the stop.

The delivery-shaft is rotated and the delivery-arms thrown forward andback by any suitable means which will impart the desired intermittent motion thereto. Preferably,

however, the shaft is operatedfrom a cam 8 upon the operating-shaft. Said cam through the rod t actuates a bell-crank lever a, which in turn actuates the shaft by means of the rod 1) and lever w.

Assuming the parts to be in the position shown in Fig. 1 of the drawings and the mechanism to be in operation, it will be seen that with the deliveryarms on their forward movement this will be continued until they reach the limit of their forward throw, at

' which point the lugs 1" will contact with the fixed stop 9, which will cause the nippers to .open and receive the sheet being delivered by the cylinder. The continued rotation of the cam will then cause the delivery-arms to begin their backward movement, which in turn will be continued unto the limit of the throw, when the movable member again will contact, but this time with the upper stop p to open the nippers. Since the stop is adjustable upon the uprights, the moment of delivery of the printed sheet into the receivingbox can beregulated by changing the point at which the movable member shall contact with the stop. Preferably, also, the delivery-arms are movable lengthwise upon the delivery-shaft, so that the arm can be adjusted to a sheet of any size.

It will be understood that I do not limit myself to the details of the mechanism shown in the accompanying drawings; but the same may be changed without departing from the spirit of the invention provided the means set forth in any of the following claims be employed.

I claim as my invention- 1 A sheet-delivery mechanism comprising a rocking shaft, depending arms secured thereto comprising a fixed member and a movable member pivoted to the fixed member, nippers carried by said arms, one of said nippers being stationary with relation thereto and the other being actuated by the movable member, and stationary stops arranged to engage alternately the movable member above and below its pivotal position to open the nippers.

2. In a sheet-delivery mechanism for printing-presses, the combination with a rocking shaft, a depending member rigidly secured thereto, nippers secured to said member, one of said nippers being stationary with relation thereto and the other being pivoted and provided with gear-teeth, of a member pivoted to said fixed member and provided on its lower end with gear-teeth meshing with the movable nipper, and means for actuating said movable member independently of the movement of the fixed member, substantially as described.

, 3. In a sheet-delivery mechanism for printing-presses, the combination of the'rocking shaft, a depending member fixed with rela tion thereto, nippers upon said fixed member, a movable member pivoted to the fixed member and engaging said nippers to open the same, a spring for normally holding the nippers in their closed position, stationary stops arranged to engage the movable member to open the nippers, and means for actuating the shaft.

4:. In a sheet-delivery mechanism for printing-presses, the combination of a rocking shaft, a depending member fixed with relation thereto,nippers upon said fixed member, a movable member pivoted to said fixed member and offset at one end and operatively connected at the other end with said nippers, a fixed stop to engage said offset end of the movable member at one end of its path to open the nippers, and a fixed stop to engage the other end of said movable member at the other endof its path to open said nippers.

This specification signed and witnessed this 31st day of December, A. D. 1904.

CHARLES B. SVVINK.

In presence of- M. A. THOMPSON, R. LEE RICHARDSON. 

